I removed the TEC cam and installed the KENT, adjusted the valves at IN 0.08mm EXH 0,23mm (on the tight side)
the valvetrain noise when bike is hot is TERRIBLE!
I changed the oil grade from 15W50 to 10W60 (Motul 7100) valvetrain noise remained unchanged.
Manualy adjusted the Cam chain tentioned from 5 notches out to 8 notches oit no change at all.
Today i adjusted the ehaust valve at 0,15mm went for a ride of 20 kilometers and wen i returned i checked the exhaust valve wile engine was still hot (engine oil 68 Celcius, head about 108 Celcius).
The exhaust valve was at 0,20mm!!!
I had NO valvetrain noise when bike was cold and a lot lower when bike was hot but i REALLY CANNOT UNDERSTAND how is this
possible and Exhaust valve clearance increases when bike is hot.
With my above experiment i can understand why the tip of the valve in many Himalayans making a dent by the rocker arm adjustment!
I am wondering if i adjust the Exhaust valve at 0,10mm cold then when it will be hot and go to about 0,15mm it will make no noise...
Your thought will be highly appreciated.